Home / 1,207,580.76-1,811,260.08-408,771

Finding the Fourth Proportional to 1,207,580.76, 1,811,260.08 and 408,771

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Solution

The fourth proportional to 1,207,580.76, 1,811,260.08 and 408,771 is: 613,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,580.76 : 1,811,260.08 = 408,771 : x
  2. Step 2: Convert to fraction form
    1,207,580.76/1,811,260.08 = 408,771/x
  3. Step 3: Cross multiply
    1,207,580.76x = 1,811,260.08 × 408,771
  4. Step 4: Simplify right side
    1,207,580.76x = 740,390,594,161.68
  5. Step 5: Solve for x
    x = 740,390,594,161.68/1,207,580.76
  6. Step 6: Final answer
    x = 613,118.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.